Table 2 Comparisons between upper lumbar and lower lumbar spine static and peak angles across postures and tasks.

Usual sitting

4.1 ± 8.8

-1.3 ± 8.8

< 0.001

0.497

0.036 (0.638)

Usual standing

23.4 ± 11.2

15.5 ± 9.6

< 0.001

0.016

- 0.505 (< 0.001)

Slump sitting

1.6 ± 9.1

-8.6 ± 6.1

< 0.001

0.770

- 0.111 (0.151)

Sway standing

31.2 ± 13.6

17.4 ± 11.9

< 0.001

0.576

- 0.58 (< 0.001)

Maximal flexion

11.8 ± 6.8

15.4 ± 5.9

< 0.001

0.026

- 0.062 (0.426)

Maximal extension

44.1 ± 19.9

25.8 ± 16.0

< 0.001

0.183

- 0.509 (< 0.001)

Pick up pen

-8.1 ± 7.2

-12.5 ± 6.3

< 0.001

0.015

0.197 (0.012)

Pick up box

-5.3 ± 8.3

-8.5 ± 8.5

< 0.001

0.108

0.274 (< 0.001)

Transfer pillow

3.5 ± 8.5

-4.7 ± 8.3

< 0.001

0.013

- 0.017 (0.825)

Transfer box

8.4 ± 8.9

1.7 ± 8.4

< 0.001

0.031

- 0.147 (0.062)

Squat

-3.2 ± 9.0

-2.9 ± 9.6

0.866

0.968

0.346 (< 0.001)